#include "widget.h"
#include "ui_widget.h"

#include "QSerialPortInfo"
#include"QSerialPort"

#include"QMessageBox"

#include<QModbusRtuSerialMaster>
#include <QModbusDataUnit>

#include<QRegularExpression>

#include<QDebug>
#include <QCheckBox>
#include<QString>

Widget::Widget(QWidget *parent)
    : QWidget(parent)
    , ui(new Ui::Widget)
{
    ui->setupUi(this);

    QStringList serialNamePort;

    qserialPort = new QSerialPort(this);

    foreach (const QSerialPortInfo &info, QSerialPortInfo::availablePorts())
    {
        serialNamePort << info.portName();
    }
     ui->seialCb->addItems(serialNamePort);
    //  连接槽函数
     connect(qserialPort,SIGNAL(readyRead()),this,SLOT(serialPortReadyRead_Solt()));
}

Widget::~Widget()
{
    delete ui;
}

QString crc16ForModbus(const QString &hexText);

void Widget::on_openBt_clicked()
{

    //定义 串口参数中间变量
    QSerialPort::BaudRate bauRate;
    QSerialPort::DataBits dataBits;
    QSerialPort::StopBits stopBits;
    QSerialPort::Parity cheakBit;
    //判断波特率并赋值
    if (ui->baundrateCb->currentText() == "4800" ) { bauRate = QSerialPort::Baud4800; }
    else if(ui->baundrateCb->currentText() == "9600" ) { bauRate = QSerialPort::Baud9600; }
    else if(ui->baundrateCb->currentText() == "115200") { bauRate = QSerialPort::Baud115200;}
    //判断数据位并赋值
    if (ui->dataCb->currentText() == "5") { dataBits = QSerialPort::Data5;}
    else if(ui->dataCb->currentText() == "6") { dataBits = QSerialPort::Data6;}
    else if(ui->dataCb->currentText() == "7") { dataBits = QSerialPort::Data7;}
    else if(ui->dataCb->currentText() == "8") { dataBits = QSerialPort::Data8;}
    //判断停止位并赋值
    if (ui->stopbtCb->currentText() == "1" ) { stopBits = QSerialPort::OneStop; }
    else if(ui->stopbtCb->currentText() == "1.5" ) { stopBits = QSerialPort::OneAndHalfStop; }
    else if(ui->stopbtCb->currentText() == "2" ) { stopBits = QSerialPort::TwoStop; }
    // 判断校验位并赋值
    if(ui->cheakCb->currentText() == "None" ) { cheakBit = QSerialPort::NoParity; }
    // 将参数中间值赋值到 接口参数上
    qserialPort->setPortName(ui->seialCb->currentText());
    qserialPort->setBaudRate(bauRate);
    qserialPort->setDataBits(dataBits);
    qserialPort->setParity(cheakBit);
    qserialPort->setStopBits(stopBits);
    //判断打开串口状态
    if(qserialPort->open(QIODevice::ReadWrite)==true)
    {
        QMessageBox::information(this,"提示","成功");

    }
    else {
        QMessageBox::critical(this,"提示","失败");
    }

}
//将接收到的报文反馈到接收框中
void Widget::serialPortReadyRead_Solt()
{
    QByteArray array = qserialPort->readAll();
    QString buf;


    buf = QString(array.toHex(' ').toUpper().append(' ')).append("\r\n");

    //正则表达式应用
    QString expobj=QString(array.toHex(' ').toUpper());
    QRegularExpression Exp;
    Exp.setPattern(".+(.{5})$");
    //Exp.setPattern("(?<crc>.+)");
    QRegularExpressionMatch ExpMatch;
    ExpMatch=Exp.match(expobj);

    QString ss=ExpMatch.captured(1);
    qDebug()<<ExpMatch.captured(0)<<"crc:"<<ss;

    //删除CRC校验
    expobj=expobj.remove(ss);

    ui->recvEdit->appendPlainText("RX:");
    ui->recvEdit->appendPlainText(buf);
    ui->recvEdit->appendPlainText(expobj);
    expobj =expobj.append(crc16ForModbus(expobj));
    ui->recvEdit->appendPlainText(expobj);


}
void Widget::on_closeBt_clicked()
{
    qserialPort->close();

}
//手动发送报文
void Widget::on_sendBt_clicked()
{
    bool ischeak =ui->crcCheakBox->isChecked();

    QByteArray array;
    QString buf =ui->sendEdit->text().toLocal8Bit().data();
    if(ischeak)
    {
        buf =buf.append(crc16ForModbus(buf));
    }
    array = qstringsHex(buf);
    buf.insert(buf.size()-2," ");
    buf.insert(buf.size()-5," ");
    ui->recvEdit->appendPlainText("TX:");
    ui->recvEdit->appendPlainText(buf.toUpper());
    qserialPort->write(array);
}


void Widget::on_clearBt_clicked()
{
    ui->recvEdit->clear();
}
// 字符串转Hex
QByteArray Widget::qstringsHex(QString str)
{
    QByteArray senddata;
    int hexdata,lowhexdata;
    int hexdatalen = 0;
    int len = str.length();

    senddata.resize(len/2);
    char lstr,hstr;
    for (int i =0 ;i<len;)
    {
         hstr=str[i].toLatin1();
         if(hstr== ' ')
         {
             i++;
             continue;
         }
         i++;
         if(i>=len)
         {
             break;
         }
         lstr=str[i].toLatin1();
         hexdata = ConvertHexChar(hstr);
         lowhexdata=ConvertHexChar(lstr);
         if((hexdata==16) || (lowhexdata==16))
         {
             break;
         }
         else
         {
            hexdata=  hexdata*16 +lowhexdata;
            i++;
            senddata[hexdatalen]=(char)hexdata;
            hexdatalen++;
         }
    }
    senddata.resize(hexdatalen);
    return senddata;
}

//ASC 码转Hex
char Widget::ConvertHexChar(char ch)
{
    if ( (ch>='0') && ( ch<='9'))
    {
        return  ch-0x30;
    }
    else if ((ch>='A') && ( ch<='F'))
    {
       return  ch-'A'+10;
    }
    else if ((ch>='a') && ( ch<='f'))
    {
       return  ch-'a'+10;
    }
    else
    {
        return  -1;
    }
}

static const quint16 crc16Table[] =
{
    0x0000, 0xC0C1, 0xC181, 0x0140, 0xC301, 0x03C0, 0x0280, 0xC241,
    0xC601, 0x06C0, 0x0780, 0xC741, 0x0500, 0xC5C1, 0xC481, 0x0440,
    0xCC01, 0x0CC0, 0x0D80, 0xCD41, 0x0F00, 0xCFC1, 0xCE81, 0x0E40,
    0x0A00, 0xCAC1, 0xCB81, 0x0B40, 0xC901, 0x09C0, 0x0880, 0xC841,
    0xD801, 0x18C0, 0x1980, 0xD941, 0x1B00, 0xDBC1, 0xDA81, 0x1A40,
    0x1E00, 0xDEC1, 0xDF81, 0x1F40, 0xDD01, 0x1DC0, 0x1C80, 0xDC41,
    0x1400, 0xD4C1, 0xD581, 0x1540, 0xD701, 0x17C0, 0x1680, 0xD641,
    0xD201, 0x12C0, 0x1380, 0xD341, 0x1100, 0xD1C1, 0xD081, 0x1040,
    0xF001, 0x30C0, 0x3180, 0xF141, 0x3300, 0xF3C1, 0xF281, 0x3240,
    0x3600, 0xF6C1, 0xF781, 0x3740, 0xF501, 0x35C0, 0x3480, 0xF441,
    0x3C00, 0xFCC1, 0xFD81, 0x3D40, 0xFF01, 0x3FC0, 0x3E80, 0xFE41,
    0xFA01, 0x3AC0, 0x3B80, 0xFB41, 0x3900, 0xF9C1, 0xF881, 0x3840,
    0x2800, 0xE8C1, 0xE981, 0x2940, 0xEB01, 0x2BC0, 0x2A80, 0xEA41,
    0xEE01, 0x2EC0, 0x2F80, 0xEF41, 0x2D00, 0xEDC1, 0xEC81, 0x2C40,
    0xE401, 0x24C0, 0x2580, 0xE541, 0x2700, 0xE7C1, 0xE681, 0x2640,
    0x2200, 0xE2C1, 0xE381, 0x2340, 0xE101, 0x21C0, 0x2080, 0xE041,
    0xA001, 0x60C0, 0x6180, 0xA141, 0x6300, 0xA3C1, 0xA281, 0x6240,
    0x6600, 0xA6C1, 0xA781, 0x6740, 0xA501, 0x65C0, 0x6480, 0xA441,
    0x6C00, 0xACC1, 0xAD81, 0x6D40, 0xAF01, 0x6FC0, 0x6E80, 0xAE41,
    0xAA01, 0x6AC0, 0x6B80, 0xAB41, 0x6900, 0xA9C1, 0xA881, 0x6840,
    0x7800, 0xB8C1, 0xB981, 0x7940, 0xBB01, 0x7BC0, 0x7A80, 0xBA41,
    0xBE01, 0x7EC0, 0x7F80, 0xBF41, 0x7D00, 0xBDC1, 0xBC81, 0x7C40,
    0xB401, 0x74C0, 0x7580, 0xB541, 0x7700, 0xB7C1, 0xB681, 0x7640,
    0x7200, 0xB2C1, 0xB381, 0x7340, 0xB101, 0x71C0, 0x7080, 0xB041,
    0x5000, 0x90C1, 0x9181, 0x5140, 0x9301, 0x53C0, 0x5280, 0x9241,
    0x9601, 0x56C0, 0x5780, 0x9741, 0x5500, 0x95C1, 0x9481, 0x5440,
    0x9C01, 0x5CC0, 0x5D80, 0x9D41, 0x5F00, 0x9FC1, 0x9E81, 0x5E40,
    0x5A00, 0x9AC1, 0x9B81, 0x5B40, 0x9901, 0x59C0, 0x5880, 0x9841,
    0x8801, 0x48C0, 0x4980, 0x8941, 0x4B00, 0x8BC1, 0x8A81, 0x4A40,
    0x4E00, 0x8EC1, 0x8F81, 0x4F40, 0x8D01, 0x4DC0, 0x4C80, 0x8C41,
    0x4400, 0x84C1, 0x8581, 0x4540, 0x8701, 0x47C0, 0x4680, 0x8641,
    0x8201, 0x42C0, 0x4380, 0x8341, 0x4100, 0x81C1, 0x8081, 0x4040
};

QString crc16ForModbus(const QString &hexText)
{
    QByteArray data  = QByteArray::fromHex(hexText.toLocal8Bit());

    quint8 buf;
    quint16 crc16 = 0xFFFF;

    for ( auto i = 0; i < data.size(); ++i )
    {
        buf = data.at( i ) ^ crc16;
        crc16 >>= 8;
        crc16 ^= crc16Table[ buf ];
    }
    crc16 =((crc16 &0x00ff)<<8 | (crc16 >>8));
   return  QString("%1").arg(crc16 , 4, 16, QLatin1Char('0'));   //拼凑成4个16进制字符，空位补0
   // return QString::number(crc16,16).toUpper();
   //   return crc16;
}

//CRC校验收到的报文-函数


//解析接到到的报文数据




